In the past, IBM provides two different HTTP Servers for the i5 server; the IBM proprietary Domino Go server and the open source Apache server. The Domino Go server is the original Web server for the i5. The Apache server was added later to provide more flexibility in Web development by supporting the very popular open source Apache server, which runs on many platforms. IBM is phasing out the Original server and developers should convert to using the Apache server. The HTTP Admin server contains conversion tools to simplify switching from the original HTTP Server to the Apache server.